| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| best books about alien contact | 1.28 | 0.5 | 2013 | 43 |
| alien contact books amazon | 1.81 | 0.4 | 1966 | 87 |
| best alien first contact novels | 0.89 | 0.5 | 6521 | 38 |
| books about first contact with aliens | 1.52 | 0.5 | 6408 | 66 |
| alien contact children's book | 1.81 | 0.9 | 8512 | 69 |
| best books about aliens | 1.99 | 0.7 | 2863 | 12 |
| discover the best books on alien worlds | 0.37 | 0.2 | 2138 | 10 |
| books about alien encounters | 0.41 | 0.5 | 1695 | 11 |
| alien first contact book | 1.48 | 0.1 | 3020 | 75 |
| best alien contact movies | 1.74 | 0.6 | 5511 | 95 |
| best alien encounter books | 0.5 | 0.6 | 9601 | 42 |
| science fiction books alien contact | 1.91 | 0.1 | 6122 | 57 |
| first contact alien romance books | 0.5 | 0.4 | 2148 | 28 |
| best alien books fiction | 0.99 | 0.7 | 925 | 95 |
| alien first contact romance book | 1.06 | 0.4 | 9111 | 67 |
| books about aliens on earth | 0.45 | 0.9 | 456 | 13 |
| fiction books about aliens | 1.94 | 0.5 | 579 | 35 |
| books written by aliens | 1.19 | 0.6 | 5881 | 55 |
| aliens books series books | 1.69 | 0.1 | 5156 | 73 |
| books on aliens involving with humans | 0.46 | 0.7 | 916 | 21 |
